When you're in tight spot to make ends meet, you need to compensate, do more trade to earn more profit, but trading is not about trading more, it's about right action at the right time so you lost all your money and you become more desperate seeking for a loan to trade again only to blow it up again.
That's the scenario when you got empty wallet but the will to make profit to trade, you become too greedy, overtrading, and desperate.
Everytime you see a rise you thought next biggest bullrun is about to come and when you see market dumping you thought the end is near. Been there done that, I'd advise only trade when you got enough of money, enough to make you feel nothing when losing it.
This is what people go wrong about. They think if they just "do something" they can profit, but sometimes there is nothing to do, or you just don't have an idea what you should be doing. That doesn't mean you are a bad trader, it just means the market is not ready for a good move yet.
But since they can't just watch and see what is going to happen and they need money, they force a move , make a trade and that ends up with them losing their money on the long run. I think that is the problem, we can't really consider this as a possibility and because of that I think they just end up making mistakes.